Sygusch, Ralf
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Effects of a Participatory School-Based Intervention on Stu..:

Strobl, Helmut ; Ptack, Katharina ; Töpfer, Clemens..
https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/13579.  , 2020
 
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Effects of a Participatory School-Based Intervention on Stu..:

Helmut Strobl ; Katharina Ptack ; Clemens Töpfer..
https://www.frontiersin.org/article/10.3389/fpubh.2020.00122/full.  , 2020
 
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